2021 CN4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4459069775 ± 1.33e-06
Semi-major axis (a)1.9369942090 AU ± 5.14e-06
Inclination (i)9.89043939° ± 2.11e-05
Long. of Asc. Node (Ω)181.33976200° ± 8.83e-06
Arg. of Perihelion (ω)342.22460217° ± 6.13e-06
Mean Anomaly (M)270.61357824° ± 2.52e-03
Mean Motion (n)0.3656114537°/day ± 1.46e-06
Perihelion dist (q)1.07327498 AU ± 3.84e-06
Aphelion dist (Q)2.80071344 AU ± 7.87e-06
Orbital Period2.69582989 yr ± 1.07e-05
Physical Parameters
H (abs. magnitude)20.47
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.176″
Uncertainty1
Orbit TypeAmor
MOID0.087348 AU
Observations Used283
Oppositions1
Arc Total2021-2021
First Observation Used2021-02-06
Last Observation Used2021-06-14
Observations (311)
Date Type RA Dec Mag Band Observatory
2021-04-30 07:38:01 C 15 27 32.93 +12 11 09.6 U I41
2021-04-30 07:57:19 C 15 27 32.30 +12 11 14.2 V I52
2021-04-30 08:06:32 C 15 27 32.10 +12 11 16.2 V I52
2021-04-30 08:33:31 C 15 27 31.72 +12 11 21.5 U I41
2021-04-30 08:54:20 C 15 27 31.06 +12 11 26.8 V I52
2021-05-04 06:40:28 C 15 26 06.90 +12 24 03.2 U I41
2021-05-04 07:32:49 C 15 26 05.71 +12 24 06.6 U I41
2021-05-04 09:06:07 C 15 26 03.53 +12 24 12.4 U I41
2021-05-04 10:10:05 C 15 26 02.07 +12 24 15.9 U I41
2021-05-07 05:19:46 C 15 24 58.32 +12 24 53.2 U I41
2021-05-07 06:45:50 C 15 24 56.40 +12 24 50.9 U I41
2021-05-07 07:34:22 C 15 24 55.30 +12 24 49.3 U I41
2021-05-07 07:57:36 C 15 24 54.57 +12 24 49.0 V G96
2021-05-07 08:05:01 C 15 24 54.40 +12 24 48.6 V G96
2021-05-07 08:12:26 C 15 24 54.21 +12 24 48.1 V G96
2021-05-07 08:19:50 C 15 24 54.04 +12 24 47.7 V G96
2021-05-07 08:36:10 C 15 24 53.86 +12 24 46.7 U I41
2021-05-07 09:05:45 C 15 24 53.14 +12 24 45.4 U I41
2021-05-07 12:49:40 C 15 24 48.96 +12 24 41.7 V T08
2021-05-07 12:50:20 C 15 24 48.87 +12 24 41.3 V T08
2021-05-07 12:54:19 C 15 24 48.84 +12 24 41.5 V T08
2021-05-07 12:54:58 C 15 24 48.84 +12 24 41.4 V T08
2021-05-07 13:13:10 C 15 24 48.37 +12 24 39.9 V T08
2021-05-07 13:21:10 C 15 24 48.21 +12 24 38.6 V T08
2021-05-08 23:27:05 C 15 24 15.95 +12 22 03.1 V K87
2021-05-08 23:36:35 C 15 24 15.80 +12 22 02.2 V K87
2021-05-08 23:40:07 C 15 24 15.67 +12 22 02.2 V A17
2021-05-08 23:46:02 C 15 24 15.52 +12 22 00.9 V K87
2021-05-08 23:57:08 C 15 24 15.33 +12 22 00.9 V A17
2021-05-09 00:14:06 C 15 24 14.97 +12 21 59.4 V A17
2021-05-11 12:05:56 C 15 23 17.205 +12 14 22.58 U F51
2021-05-11 12:23:56 C 15 23 16.810 +12 14 19.43 U F51
2021-05-11 12:41:57 C 15 23 16.417 +12 14 16.25 U F51
2021-05-11 12:59:58 C 15 23 16.030 +12 14 12.98 U F51
2021-05-20 05:56:50 C 15 20 33.59 +11 16 33.0 V G96
2021-05-20 06:04:12 C 15 20 33.46 +11 16 30.4 V G96
2021-05-20 06:11:35 C 15 20 33.36 +11 16 27.8 V G96
2021-05-20 06:18:58 C 15 20 33.25 +11 16 25.1 V G96
2021-06-01 04:11:24 C 15 19 20.30 +09 04 18.8 u 807
2021-06-01 04:17:24 C 15 19 20.30 +09 04 16.0 u 807
2021-06-01 04:23:26 C 15 19 20.28 +09 04 12.9 u 807
2021-06-01 07:00:50 C 15 19 21.418 +09 02 32.64 U F51
2021-06-01 07:17:14 C 15 19 21.390 +09 02 23.95 U F51
2021-06-01 07:33:40 C 15 19 21.355 +09 02 15.13 U F51
2021-06-02 04:15:29 C 15 19 23.47 +08 51 17.3 u 807
2021-06-02 04:21:36 C 15 19 23.47 +08 51 14.3 u 807
2021-06-02 04:27:40 C 15 19 23.49 +08 51 11.4 u 807
2021-06-03 07:08:48 C 15 19 29.609 +08 36 14.26 U F51
2021-06-03 07:26:32 C 15 19 29.604 +08 36 04.63 U F51
2021-06-03 07:44:23 C 15 19 29.588 +08 35 54.66 U F51